baber/WOPTO huggingface dataset:
Patent GB-521798-A (GB)
Title: Improvements relating to apparatus for amplifying alternating or pulsating electric currents
IPC: H03F9/02
Filed: 1938-11-23
Abstract: 521,798. Non-contact-making relays. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., STEVENS, S. A., and WALKER, A. H. B. Nov. 23, 1938, No. 34096. [Class 40 (iv)] Means for amplifying an alternating or pulsating current comprises a tuned oscillatory circuit c supplied with energy through a rectifier b from a source of 'alternating current which incorporates means a for imparting a negative resistance characteristic thereto. The circuit c is caused to oscillate by the current to be amplified applied at T, U and the amplified output is obtained from the circuit c at terminals X, Y, or in the form of a modulation of the alternating current from the source R, S at terminals X', Y<SP>1</SP>. The means a may comprise (1) a pair of inductances, one having a saturated core and being shunted by a condenser, and the other having an unsaturated core, or (2) a series choke having a saturating winding energized by the output of the-rectifier. The latter may be a bridge connection of dry contact rectifiers. The input from terminals T, U may be inductively coupled to the inductances of the oscillatory circuit c. The output may be similarly coupled to the inductance or may be taken from the terminals of the condensers.
Patent GB-877465-A (GB)
Title: Improvements in and relating to fixing window frames in carriages and the like
IPC: B61D25/00
Filed: 1958-10-28
Abstract: 877,465. Vehicle window frames. GIBBONS Ltd., JAMES, and RYLAND, G. F. Oct. 26, 1959 [Oct. 28, 1958], No. 34454/58. Class 20(3) [Also in Group XXXII] In a railway carriage window frame with a peripheral cover flange 4 to overlap the surrounding border of the window aperture in a body side panel 6, the inner surface of the flange 4 has a longitudinal slideway 7, e.g. of dovetail section, for engagement by parts such as nuts and screws 9, 10, 11, of fixing. means adjustable along the slideway to coincide with holes in the border of the panel 6. As shown screw stems 10 screw into bevelled head nuts 9 slid into the groove 7 and introduced thereinto at spaced apart enlargements of the groove and nuts 11 pull the flange 4 tightly against panel 6. Grooves 5 are provided for sealing mastic. The screw stems 10 may also pass through the body pillar 12. The slideway may also take the form of a rib or ribs on the flange 4 to be engaged by hooked or slotted heads of fixing screws.
Patent GB-884930-A (GB)
Title: Process for the polymerisation of butadiene
IPC: C08F36/06
Filed: 1960-10-10
Abstract: Polymers and copolymers of butadiene are made by polymerizing butadiene alone, or in conjunction with another ethylenically unsaturated monomer such as styrene or another conjugated diene, in the presence of a catalyst prepared by bringing together a component A, comprising a product obtained by the reaction at a temperature below 150 DEG  C. of a titanium tetrahalide and an aluminium trialkyl, and a component B comprising an aluminium monoalkyl dihalide.  The atomic ratio of titanium in A to aluminium in component B is between 1:1 and 1:20.  The preparation of component A is preferably effected in a hydrocarbon diluent which may be subsequently used as the polymerization medium.  The butadiene may be polymerized in the liquid or gaseous state.  The polymerization may be effected batchwise or continuously.  In the example, component A is made by reacting titanium tetrachloride in iso-octane with aluminium triethyl, adding benzene and aluminium monoethyl dichloride and then effecting the polymerization of butadiene by introducing it as a gas into the catalyst mixture. The polymers have a predominantly trans -1, 4 configuration. Specification 789,781 is referred to.
Patent GB-416314-A (GB)
Title: Process for the after treatment of sterile material in the form of bands or filaments
IPC: A61L17/08
Filed: 1932-12-07
Abstract: 416,314. Treating and packing catgut. ZEISSLER, J., 29, Bebelallee, Altonaon-Elbe, Germany. Dec. 7, 1932, No. 34638. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 8, 1933]. Drawings to Specification. [Class 94 (i).] In a process for treating cat-gut and the like the sterilizing bath in which the material is immersed is introduced into a chamber unoccupied by human beings so that further operations may be carried out mechanically under aseptic conditions. The gut-lengths are stretched on holders in the bath, and, after the introduction of the bath into the chamber, six or more lengths are twisted together to form threads while still in the bath. The threads are dried on endless chains and may be smoothed, polished, measured, and joined by tags before being wound on star-shaped or cylindrical spools. The spools are then enveloped and packed. All the operations performed within the chamber are stated to take place mechanically.
Patent GB-1379941-A (GB)
Title: Programmable logic controllers
IPC: G05B19/05
Filed: 1972-07-25
Abstract: 1379941 Program controlled machine tools ALLEN-BRADLEY CO 25 July 1972 [28 July 1971] 34732/72 Heading G3N In a programmed machine tool control system in which a sequence of 8-bit words are fed, two bits to define an operation to decoder 49, 6 bits comprising an address normally defining the location for which the operation signal is destined to address decoder 14, both the operation, and address signals are processed in a logic system so that the number of machine locations receiving operation signals is considerably increased over the above normal number, and accordingly above the capacity of decoder 14. As shown, address codes, in octal digits 01, 02, 03 and 77 are not used for machine locations, but, in combination with the operation signals on lines 50, 51 are used to define which one of the banks 118, 121, 131b, 133b, 137b, 139b of machine locations are addressed, the particular location in the selected bank addressed being defined by an address in unit 13 to which each bank is connected. Address bank selection. A signal BRT on line 51, which would normally cause the storage of the logic state on line (23), Figs.3, 4 (not shown) of peripheral devices, combined with the (octal) address 77 causes a change in logic state on complementary terminal pair 66, 68. A similar change in state at terminals 75, 75' is caused in dependence on the presence of an (octal) digit 4, 5, 6 or 7 in the most significant part of an address. The existence of an address 01, 02 or 03 as well as a signal SET on line 50 which would normally command a machine member cause terminal 107, 108 or 109 respectively to acquire the state "logic high". An interface logic circuit comprising a plurality of AND and OR gates, Fig.2, ensures that, for logic high at terminal 107 either of address banks 118 or 120 can be paged, depending on the states of the pairs 66, 68; 75, 75', it being required that bank 120 contain only units indicating states at machine locations. For logic high at terminal 108, either of banks 131b, or 133b can be paged, banks 137b, 139b being pageable for logic high at terminal 109. Machine member state indicating circuit, Fig.3 (not shown). A signal from a limit switch or photo-cell (not shown), is fed to NAND input (19), the signal passing to line (23) for storage on receipt of the BRT signal provided the particular NAND is addressed on lines (14, 15) from decoder 13, and an enabling signal on line (21) indicates that the particular NAND is in a paged address bank. Member actuation circuit, Fig.4 (not shown). Address enabling signals (14, 15) and a "paged bank" signal (21) are fed to NAND (24), the command signal SET being provided at terminal (44) and operating the member via inverter (47), flip-flop (25) receiving clockpulses at terminal 34, which can be enabled by the signals (14, 15, 21) via diodes (33, 35, 36).
Patent GB-621595-A (GB)
Title: Improvements in or relating to electrical plug and socket connectors
IPC: H01R13/71
Filed: 1946-11-22
Abstract: 621,595. Two-part couplings. WRIGHT, J. T. W., and MACGILTROW, L. E. Nov. 22, 1946, No. 34775. [Class 38 (i)] A plug-and-socket or like connector suitable for movable machines, is enclosed in a housing 7, and its movable element 20 is arranged to be disconnected automatically from the fixed element 6, and rendered dead before access can be had to it, by spring means operative either on removal of the housing cover 9 or when a retaining means is freed prior to removal of the cover. The fixed element 6 comprises a set of slidable spring socket-contact studs 12a sunk in an insulating block 11. The movable element, plug 20, comprises a metal housing 21 enclosing an insulator 22 supporting spring-loaded contacts 23a. Slots 29a in lugs 29 on the housing 21 slide on guide pillars 16 secured to the box 7 and extending freely through the block 11. These pillars carry spring-loaded thimbles 15 which bear on the lugs 29 and have travel-limiting flanges 15a. When a lever 32 is freed by undoing a catch 35, it withdraws a slidable plunger 27 from abutment with the plug, whereupon the springs 15 push the plug 20 from the socket and bring it to rest on stops 17, in readiness for removal by hand after the cover 9 is opened by slackening wing-nuts 10. The plug is re-connected by placing it on the pillar 16, closing the cover, and locking the lever 32. In a modification employing normal pins and sockets, Figs. 2, 3 (not shown), the lever is dispensed with, and the cover has a rigid stop bearing directly on the plug so as to free it when the cover is undone. In a further construction, Figs. 4-6 (not shown), employing the lever 32 of Fig. 8, the plug contacts are plate-shaped. An isolating switch may be incorporated to act automatically with, or independently of, the cover.
Patent GB-1221936-A (GB)
Title: Ignition devices for heaters
Inventor: PARISH NORMAN ARTHUR
IPC: F23Q3/00
Filed: 1967-07-28
Abstract: 1,221,936. Ignition device. ROTAX Ltd. 10 July, 1968 [28 July, 1967], No. 34789/67. Heading F4F. For use with a heater especially a railway points heater including a burner 10 fed with flammable gas from a source 13 through a conduit 12 including a temperature sensitive valve 16, an ignition device comprises a further conduit 17 through which gas flows when valve 16 is opened, motor means 22 actuated by the flow of gas and a generator 23 actuated by the motor 22 to supply electrical energy to a spark ignition plug 25 to ignite the gas at the burner 10. As shown, the motor means comprises a reed 22 downstream of a nozzle 18 which reed 22 is vibrated by gas flow to actuate a generator in the form of a piezo-electric element 23. Alternatively (as seen in Figure 2, not shown) the motor comprises a turbine and the generator comprises a permanent magnet generator; or the motor may comprise an oscillating piston which operates a linear generator. On ignition of the gas at the burner, the increase in pressure causes movement of a spring loaded piston 20 to thereby close a flap valve 19 in the conduit 17 upstream of the motor 22.
Patent GB-1128850-A (GB)
Title: Improvements relating to the preparation and use of photo-resists
Inventor: CELESTE JACK RICHARD
IPC: G03F7/038
Filed: 1966-08-03
Abstract: 1,128,850. Photo-sensitive materials. E.I. DU PONT DE NEMOURS & CO. Aug. 3, 1966, No.34841/66. Heading G2C. [Also in Divisions C7 and H1] A photo-sensitive material comprises a flexible polymeric support coated with a layer which is a photo-dimerisable composition, a polymer sensitized with a dichromate, a diazonium compound or an azide or (a) a polymer of formula and (b) a polymerisation photo-initiator as disclosed in Specification 1,110, 050 and laminated to a metal, glass or polymeric layer. Photo-dimerisable materials disclosed are cinnamic acid esters of polymeric polyols and polymers having chalcone and benzophenone groups. Polymers which may be sensitized are polyamides, polyacrylic-and methacrylic-amides, polymeric polyols, gelatine, glue and shellac. If laminated to a metal or glass layer, the material is imagewise exposed through the support, developed and etched if necessary. If laminated to a protective polymeric layer, this may be stripped off before exposure and the material laminated to a metal layer or copperclad fibre-glass board and processed as above. Suitable polymeric supports and protective layers are polyamides, polyolefines, vinyl polymers and cellulose esters and preferably polyethylene terephthalate. In the examples, the photo-sensitive material is laminated to a copper-clad fibreglass board or dyed aluminium foil, imagewise exposed, the support stripped off, the material is then developed and etched to produce a printed circuit or a name plate.
Patent GB-880130-A (GB)
Title: Improvements in or relating to chromium production
IPC: C22B34/32
Filed: 1959-10-16
Abstract: Pure chromium is produced by reducing finely-divided solid chromium chloride entrained in hydrogen gas at a temperature below the decomposition temperature of the CrCl3, but at least 700 DEG C.; an excess of hydrogen of at least 50 times the stoichiometric amount is required to reduce the chloride completely, and for higher temperatures, e.g. 800 DEG C. to 950 DEG C., the hydrogen must be 400 to 600 times in excess.  The reduction zone may contain a bed of finely-divided metal such as chromium fluidised by the hydrogen gas, the excess of which may be removed, purified and recycled.  U.S.A. Specifications 2,142,964, 2,341,844 and 2,837,420 are referred to.
Patent GB-448273-A (GB)
Title: Improvements relating to sinks
IPC: E03C1/182
Filed: 1934-12-07
Abstract: 448,273. Sinks. DONALD, P. G., 225, Upper Thames Street, and ASSOCIATED BUILDERS MERCHANTS, Ltd., Peter's Hill, Upper Thames Street, London. Dec. 7, 1934, No. 35207. [Class 26] A sink is provided on the exterior surface of one wall with a vertical central web 2 having an overflow passage located therein, two recessed panels 1 being formed in said wall one on each side of the web, the panels being bounded along the top and outer vertical edges by a marginal portion 4 of the same thickness as the web, the vertical surface of the web and portion 4 being in the same plane. The front and side walls are also provided with panels such as 8 bounded by portions 11. The roll is, in the region of the overflow, preferably recessed to provide a housing for a removable soap dish.
Patent GB-450072-A (GB)
Title: Improvements in or relating to dynamos
IPC: H02K21/14
Filed: 1935-12-19
Abstract: 450,072. Magnetos. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Dec. 19, 1935, No. 35215. Convention date, Jan. 30. [Class 35] A dynamo, particularly for cycles, comprises a rotary permanent magnet having a length greater than its diameter and surrounded by an armature having elongated imbricated polepieces. In the form shown, the end discs 3, 4 fit in the ends of a cylindrical tube to form the armature core and the winding is disposed between said tube and the polepieces 5, 51. The disc 3 is secured to a bearing sleeve 6 for the magnet shaft. In a modification, the parts 3, 5, 6 are made, preferably by casting, in one piece with the casing.
Patent GB-820733-A (GB)
Title: Improvements in or relating to the vacuum melting of metals in a furnace, and to furnace linings for use therein
IPC: C22B5/16
Filed: 1955-12-03
Abstract: 820,733. Refractory materials. STAHLWERKE SUDWESTFALEN A. G. Dec. 8, 1955 [Dec. 8, 1954(2)], No. 35293/55. Class 22. [Also in Group XII] A furnace for melting metals or alloys, e.g. iron or steel or steel alloys, at reduced pressure, is provided with a lining that gives up no oxygen to the melt, the lining being manufactured by tightly packing dry fused magnesia granules around a core, placing the granules and core in at atmosphere of low oxygen content produced by reduced pressure and/ or a protective gas, i.e. a gas which at higher temperatures does not contain free or available oxygen, and heating the core to sinter the layer of granules around it. In the form illustrated, the sintering core 4 is of graphite which is separated from the surrounding magnesia granules 5 by corrugated cardboard or paper 6. An induction furnace inside a water-cooled induction coil 1 heats the graphite core causing the corrugated cardboard or paper to burn thereby facilitating the escape of gases from the bottom of the core through the gap formed between the core and granules. Heating is increased to 2,000‹C.-2,500‹C., whilst the furnace is under vacuum, until sintering occurs.
Patent GB-1380948-A (GB)
Title: Pulse generator for an electrical control system of a machine
IPC: H03K17/90
Filed: 1972-07-28
Abstract: 1380948 Measuring speed electrically H STOLL G STOLL E STOLL E STOLL J STOLL A STOLL R E STOLL and M STOLL 28 July 1972 [10 Aug 1971] 35297/72 Heading G1N In a pulse generator for a knitting machine, an apertured soft iron control member 27 moves relative to one or more air gaps 25, 26 in a closed magnetic circuit of a permanent magnet 20, the or each air gap containing a magnetoresistive field plate 30, 31 to generate pulses during relative motion of two parts of the machine, and a magnetic shunt 34 is located to render some of the control member ineffective to suppress selected pulses.
Patent GB-1435159-A (GB)
Title: Duplex pumping unit process for o
IPC: F04D13/14
Filed: 1973-07-24
Abstract: 1435159 Centrifugal pumps KLEIN SCHANZLIN & BECKER AG 24 July 1973 [28 July 1972] 35304/73 Heading F1C A pumping unit comprises two centrifugal pumps in respective pumping chambers in a common casing 1 providing a common inlet chamber 8 and a common outlet chamber 11, a non-return valve flap 17 in the outlet chamber operable to close one or other of the respective outlets 9, 10 leading from the pumping chambers to the outlet chamber whereby if only one pump is running the outlet of the other pump is closed to prevent backflow through it, and a stop flap 14 pivotally mounted in the inlet chamber for movement between two extreme positions in each of which it sealingly engages a respective valve seat 15 or 16 to seal the respective inlet 6 or 7 from the inlet chamber. The flap 14 is actuated manually by a cam 13. The parts 2, 4 or 3, 5 of the inoperative pump may then be removed while the other pump remains in operation. When both pumps are running, the flaps 14, 17 take up central positions.
Patent GB-800182-A (GB)
Title: Storage or display shelves, especially for books
IPC: A47B51/00
Filed: 1954-12-07
Abstract: 800,182. Cabinets. BAMFORD, W. E. Dec. 6, 1955 [Dec. 7, 1954], No. 35348/54. Class 52(1) In a cabinet with vertically displaceable blocks of shelving 2 mounted in pairs, side by side or back to back, and connected by ropes &c. 12 passing over pulleys 9 so that one block counterbalances another, roller blinds 14 are fitted above and below each block to unroll and cover the gaps left as the shelves are raised and lowered.
Patent GB-878510-A (GB)
Title: Method and apparatus for coating of metallic strands with a molten metal having a tough and gummy oxide
Inventor: KNAPP EARLE LYSLE
IPC: C23C2/22
Filed: 1959-10-19
Abstract: 878,510. Coating with metals. ARMCO INTERNATIONAL CORPORATION. Oct. 19, 1959, No. 35374/59. Addition to 827,295. Class 82(2) A strand of metal is coated with a metal having a tough and gummy oxide by cleaning it, heating close to the temperature of the molten metal, passing it upwardly through an orifice in a vessel containing the molten metal maintained above the level of the orifice and controlling the thickness of the coating by passing it through an element of material non-wettable by the molten coating metal surrounding the strand with clearance and situated above the orifice. As shown, strand 15 is coated with molten metal, the thickness of the coating being controlled by non-wettable element 22. In an example, aluminium is the coating metal and element 22 may be made of ceramic material.
Patent GB-1480377-A (GB)
Title: Yagi aerial arrays
IPC: H01Q19/30
Filed: 1975-05-05
Abstract: 1480377 Aerials; Yagi arrays JAYBEAM Ltd 5 May 1975 [12 Aug 1974] 35445/74 Heading H4A A Yagi aerial array comprises a boom 30 to which are fixed first 31a-31c and second 32a- 32c sets of elements, each set comprising parallel elongate parasitic elements and a dipole, the two sets and the boom being mutually perpendicular and alternate elements 31a, 31b in any one set being fixed on opposite sides of the boom at their mid points.
Patent GB-1529970-A (GB)
Title: Laser q-switch manufacture
IPC: H01S3/113
Filed: 1977-08-24
Abstract: 1529970 Coated products-laser Q-switch EMI Ltd 24 Aug 1977 [26 Aug 1976] 35481/76 Heading B2E A dye based Q-switch is prepared by dipping a clean mechanically sound substrate, e.g. of Perspex (Registered Trade Mark) into a solution of a saturation bleachable dye, e.g. bis (4-dimethylaminodithiobenzil) nickel II in a binder, e.g. an acrylate resin, heating and pressing the coated substrate between mould parts and cooling under pressure. The substrate may be annealed and cleaned in an ultrasonic bath.
Patent GB-467911-A (GB)
Title: Improvements in or relating to machines for pumping or conveying concrete or like materials
IPC: F04B15/02
Filed: 1935-12-24
Abstract: 467,911. Non-return valves. RANSOMES & RAPIER, Ltd., and LEWIS, R. S. Dec. 24, 1935, No. 35723. [Class 135] [Also in Group XXVIII] In a pump for concrete and the like, a flap discharge valve F is employed in which the surface F3, exposed to the back pressure, is curved to an arc having its centre in the pivot pin F<1>. The valve is opened by the discharge pressure and is closed by a spring J threaded on a rod G, pivoted to the valve and enclosed in a casing H. The valve opening is packed by a gasket K and by a water seal L. The valve casing D is of rectangular section and is connected to the pump cylinder A and to the discharge pipe E by junction pieces D<1>, D<2>.
Patent GB-1169881-A (GB)
Title: A Shuttle for use in a Circular Loom
Inventor: WARD KENNETH
IPC: D03J5/00
Filed: 1965-08-20
Abstract: 1,169,881. Shuttles for circular looms. FAIRBAIRN LAWSON Ltd. 21 Nov., 1966 [20 Aug., 1965], No. 35726/65. Heading D1E. A shuttle 10 for a circular loom has a chordally disposed freely rotatable bobbin 16 from which slit-film yarns may be withdrawn without twisting. The bobbin 16 is mounted on spring-loaded, freely rotatable spigots 11, 12 and the yarn is withdrawn over a curved rod 20 and passes through the eye 18 of an adjustably mounted beat-up arm 17.
Patent GB-619351-A (GB)
Title: Improvements relating to suitcases, luggage containers, and handbags
IPC: A45C13/26
Filed: 1946-12-04
Abstract: 619,351. Portmanteaux ; cases. WADE, W. L. Dec. 4, 1946, Nos. 35860/46 and 6085/47. [Classes 18 and 133] A suitcase, luggage container or handbag is provided with a single strap 2 having apertures 3 and enlarged ends 5, a yoke 6 through which the strap passes secured at or near each end of the container, and a stud or studs 4 also secured to each end of the container adapted to co-act with said apertures 3 so that the strap may be set to lie closely against the case top or be slackened to provide a loop for carrying, e.g. from the shoulder. An additional small armpit strap 8, adjustable at one or both ends and set either above or below the main strap 2, may be provided ; whilst the base of the container may have anti-friction runners, e.g. castors 7.
Patent GB-1308206-A (GB)
Title: Production of aldehydes and alcohols according to the oxo process
IPC: C07C45/50
Filed: 1970-07-24
Abstract: 1308206 Production of aldehydes and alcohols by the oxo process BADISCHE ANILIN- & SODA-FABRIK AG 24 July 1970 [26 July 1969] 35892/70 Heading C2C Aldehydes and/or alcohols are produced according to the oxo process by reacting of an olefinically unsaturated compound of carbon monoxide and nitrogen in the presence of cobalt carbonyl compound at elevated temperature and super-atmospheric pressure and cooling the reaction zone with an alkanol having one to four carbon atoms as cooling liquid.